regulation – Sergei Ostroumov

Article: Imbalance of Factors Providing Control of Unicellular Plankton Populations Exposed to Anthropogenic Impact.

2001, Volume 379, pp. 341-3.43;

http://link.springer.com/article/10.1023%2FA%3A1011600213221;

DOI 10.1023/A:1011600213221;

ABSTRACT: https://www.researchgate.net/publication/10614342_Imbalance_of_factors;

Ostroumov S.A. Imbalance of factors providing control of unicellular plankton populations exposed to anthropogenic impact. – Doklady Biological Sciences, 2001. Vol. 379, P. 341-343. 4 tables. Bibliogr.12 refs. (Translated from DAN 2001. Vol. 379. P.136-138). ISSN 0012-4966 (Print) 1608-3105 (Online). PMID: 12918370 [PubMed – indexed for MEDLINE]. The paper presents and analyzes new experimental data on the effects of chemical pollution of aquatic medium on the abundance of unicellular plankton organisms. The following 6 types of effects of filter-feeders and chemical pollutants [surfactants and detergents (mixtures)] on phytoplankton organisms were found (examples were given in this paper in Tab.2): (1) Inhibition of growth (and abundance); (2) Growth stimulation in the presence of surfactants and detergents; (3) Decrease in abundance as a result of elimination of plankton cells from water by the freshwater mollusks Unio tumidus and rotifers; (4) Abundance decrease as a result of water filtration by the marine mollusks Mytilus edulis, M. galloprovincialis, and Crassostrea gigas; (5) Decrease in the efficiency of cell elimination from water caused by the TX-100-induced (5 mg/l) inhibition of the filtration activity of the freshwater mollusks U. tumidus; (6) Decrease in the efficiency of cell elimination from water as a result of inhibition of the filtration activity of the marine mollusks Mytilus galloprovincialis and Crassostrea gigas induced by surfactants and Avon Herbal Care (hair shampoo). A new parameter and formula were suggested: the efficiency of cell elimination from water, ECE. The following maximum values of ECE were found (at the concentrations of the chemical, mg/l, in brackets): (1) Detergent OMO, Unio tumidus, 186.7 (50); (2) Detergent Losk-Universal, Mytilus galloprovincialis, 551.7 (7); (3) Detergent Tide-Lemon, Mytilus galloprovincialis, 206.9 (50); (4) Detergent IXI, M. galloprovincialis, 157.8 (10); (5) Detergent Deni-Automat, Crassostrea gigas, 10 800.0 (30); (6) Detergent Lanza, Crassostrea gigas, 261.7 (20); (7) Detergent Vesna-Delikat, Crassostrea gigas, 200.0 (1);

The tables in the paper:

Factors of regulation of unicellular plankton abundance (Tab.1); effects of surfactants and detergents on phytoplankton abundance (Tab.2); 7 detergents inhibit filtration of 3 species of marine and freshwater molluscs (Tab.3); Mytilus galloprovincialis eliminates from water the cells of Saccharomyces cerevisiae and algae Pavlova lutheri = M. lutheri as a result of filtration (comparing the 2 processes at the same time, Tab. 4).

CONCLUSIONS. The results obtained in this work demonstrated and proved that certain pollutants might cause a substantial imbalance of the factors controlling unicellular plankton populations. Direct and indirect (mediated by organisms-consumers) effects of certain surfactant-containing mixtures on unicellular plankton could sum with each other, giving rise to mutual amplification. This may cause a complete imbalance of the system. The conclusions made in this work may be applied to unicellular plankton of both marine and freshwater ecosystems, including ecosystems subjected to eutrophication. The results contribute to issues of environmental safety and resource use sustainability. DOI 10.1023/A:1011600213221; www.springerlink.com/index/QGJ756467J2R7470.pdf

tags:

water_quality, water, unio, tumidus, theory, sustainable_use, suspension_feeders, shampoo, services, self-purification, regulation, quality, pollution, pollutants, plankton_populations, phytoplankton_control, pavlova, mytilus, lutheri, gigas, galloprovincialis, filter-feeders, eutrophication_prevention, environmental_safety, ecosystems, ecosystem, ecological_stability, detergents, crassostrea, control, bioeffects, aquatic, ecosystems, aquatic_biota, aquaculture, marine, гидробиология, моллюски, качество воды, самоочищение, аквакультура, марикультура,

Unio tumidus, Mytilus galloprovincialis, Mytilus edulis, Crassostrea gigas,

New key to red tides and other environmental challenges:Inhibitory analysis: Discovery and innovation in environmental sciences and ecology

Inhibitory analysis in ecology.

This is about a discovery and innovation in environmental sciences and ecology, item 3 on the list of 18 (the list see here [3])

This new approach in ecology allows to see better the real role of organisms of a higher trophic level in regulation of the organisms of a lower trophic level.

The method that was applied was to inhibit the functional activity of the organisms of a higher trophic level and to observe the consequences: what happens with the organisms of a LOWER trophic level.

It was done by the inventor of this methodology in the laboratory experimental systems with bivalve mollusks that that a higher trophic level organisms as compared to phytoplankton algae. The algae are a lower trophic level organisms as compared to bivalve mollusks. The bivalves feed on algae.

In my experiments, I decreased trophic activity of bivalves using special chemical inhibitors. I used my previous discovery that some chemical – surfactants – can decrease filtering activity of bivalves (more about this discovery see: http://sergostroumov.scienceblog.com/2012/04/15/new-facts-on-hazardous-biological-and-toxic-effects-of-surfactants-and-detergents-paradigm-shifted/ ).

The result of this series of experiments was very clear: as a result of my inhibition of the organisms of the higher trophic level (bivalves) I observed a very significant increase in abundance of the organisms of a lower trophic level (algae). The increase was – in some experiments – manifold.

What is the significance of this scientific result? It is really important as the abundance of phytoplankton algae is of great practical importance in such phenomena as eutrophication and algal blooms (also cyanobacterial blooms, red tides, brown tides, etc.). As a result, we got an instrument that helps us to evaluate and quantify the role of organisms of a higher trophic level (such as bivalve mollusks in water bodies and streams) to regulate and control the organisms of a lower trophic level (such as phytoplankton algae and cyanobacteria). Actually it is about how nature prevents us and itself from environmental disasters which happen when we damage those beneficial natural mechanisms of control. We know those disasters under the names of eutrophication and algal blooms.

The summary is given below.

A new approach was developed to explore top-down control in ecosystems: eutrophication, algal bloom, water self-purification.

New facts were discovered by the author about the organisms which are filter-feeders (suspension-feeders), these facts led to developing the new methodology to quantify the natural control mechanisms described above.

This new approach gave methodology to quantitatively estimate the role of organisms in regulation via food web in ecosystem. See more detail about this discovery on the site [1] and in the publication [2].

References:

http://www.scribd.com/doc/61179989/3-Legendary-discoveries-top-Down-Control-Inhibitory-analysis;

2 Key publication: http://www.moip.msu.ru/?p=154;

3 The list of 18 items on key discoveries and innovations:

Discoveries, innovations in environmental sciences, ecology

Addition:

interesting posts on innovations in environmental science:

http://5bio5.blogspot.com/2012/05/normal-0-false-false-false-ru-x-none-x_03.html;

http://5bio5.blogspot.com/2012/04/environmental-science-key-bibliography.html;

http://5bio5.blogspot.com/2012/05/websites-on-scientific-activities-of.html;

http://5bio5.blogspot.com/2012/05/blog-post.html;

http://5bio5.blogspot.com/2012/05/discovery-of-inhibitory-analysis-in.html;

http://5bio5.blogspot.com/2012/05/aquatic-macrophyte-ceratophyllum.html;

http://5bio5.blogspot.com/2012/04/well-cited-article-inhibitory-analysis.html;

http://5bio5.blogspot.com/2012/05/innovative-contribution-to-solution-to.html;

http://5bio5.blogspot.com/2012/05/new-scientific-terminology-integral.html;

http://5bio5.blogspot.com/2012/05/monetary-estimate-of-good-scientific.html;

A new way of mining gold from water? Environment, Nanomaterials, Water, Gold. Know-how using biological

Discovery of the key role of organisms that filter water and make it clear

Venus, or Aphrodite, goddess of love, Environment, Water and Ecology. Environmental role of synthetic surfactants

Will wars of future be related to modern science and theories of ecology? Key issues, water quality: scientific fundamentals, achievements, discoveries, bibliography

Discoveries, innovations in environmental sciences, ecology

New facts on hazardous biological and toxic effects of surfactants and detergents: paradigm shifted

Key words:

regulation, trophic level, food chain, eutrophication, algal blooms, cyanobacterial blooms, red tide, brown tide, filter-feeders, bivalves, water bodies, streams,

ecological, discoveries, 2012, science, terminological,

About the author:

http://famous-scientists.ru/3732/

Discoveries, innovations in environmental sciences, ecology

Discoveries, innovations in environmental sciences, ecology:

http://scipeople.com/group/380/topic/6102/;

www.scribd.com/doc/83168032/
INNOVATIONS, DISCOVERIES, in ecology, environmental sciences, biology
18 Items, in English;
List of Sites in Other Languages;
List of One-line Titles: Discoveries, innovations in environmental sciences, ecology
**Part 1. SITES with comments IN SOME WORLD LANGUAGES:
In English:

In Chinese (simp.): http://www.scribd.com/doc/82323589/ In Chinese (trad.): http://www.scribd.com/doc/82374003/In French: http://www.scribd.com/doc/82323068/In-French In Indonesian: http://www.scribd.com/doc/82369704/In-Indonesian;In Italian: http://www.scribd.com/doc/82370780/; In Japanese: http://www.scribd.com/doc/82404969/In-Japanese; In Malay:http://www.scribd.com/doc/82409403/In-Malay; In Portuguese: http://www.scribd.com/doc/82463074/ In Spanish: http://www.scribd.com/doc/82469956/In-Spanish;.
Part 2. THE LIST OF THE DISCOVERIES, INNOVATIONS, FORMULATED IN ONE-LINE SENTENCES:
1. Innovative conceptualization: how ecosystems improve water quality.

2. Fundamentally new facts: hazardous biological and toxic effects of detergents.

3. Inhibitory analysis: A new method to explore top-down control in ecosystems.

4. A contribution to solution: the problem of criteria for environmental hazards.

5. A new contribution to solution: the problem of eutrophication.

6. New measurements: a quantitative estimate: the role of pellets of mollusks.

7. New facts, discovery: pollutants inhibit: fluxes (flows, transfers) of chemical elements.

8. Biomachinery. A new fundamental concept. New scientific term. Authored by Dr. S.A. O.

9. Modernized Terminology. A new improved definition. What is ‘ecosystem’?

10. New key facts. Scientific basis of technology. New phytotechnology: water treatment.

11. A new step. How to solve the problem. Stability of the biosphere.

12. A new component of the mechanism of regulation. Self-organization in the biosphere.

13. New serious hazards: low-level (sublethal) chemical pollution.

14. A new environmental hazard of pollution: damage to links between parts of ecosystems.

15. A new mechanism. How living organisms change the environment.

16. New fundamental concepts, terminology. Two-level synergism: man-made effects;

17. A new anthropogenic factor: initiation, stimulation of algal blooms.

18. New short list. The most urgent topics: environmental research in 21st
century

Addition:

interesting posts on innovations in environmental science:

http://5bio5.blogspot.com/2012/05/normal-0-false-false-false-ru-x-none-x_03.html;

http://5bio5.blogspot.com/2012/04/environmental-science-key-bibliography.html;

http://5bio5.blogspot.com/2012/05/websites-on-scientific-activities-of.html;

http://5bio5.blogspot.com/2012/05/blog-post.html;

http://5bio5.blogspot.com/2012/05/discovery-of-inhibitory-analysis-in.html;

http://5bio5.blogspot.com/2012/05/aquatic-macrophyte-ceratophyllum.html;

http://5bio5.blogspot.com/2012/04/well-cited-article-inhibitory-analysis.html;

http://5bio5.blogspot.com/2012/05/innovative-contribution-to-solution-to.html;

http://5bio5.blogspot.com/2012/05/new-scientific-terminology-integral.html;

http://5bio5.blogspot.com/2012/05/monetary-estimate-of-good-scientific.html;

A new way of mining gold from water? Environment, Nanomaterials, Water, Gold. Know-how using biological

Discovery of the key role of organisms that filter water and make it clear

Venus, or Aphrodite, goddess of love, Environment, Water and Ecology. Environmental role of synthetic surfactants

Will wars of future be related to modern science and theories of ecology? Key issues, water quality: scientific fundamentals, achievements, discoveries, bibliography

Discoveries, innovations in environmental sciences, ecology

New facts on hazardous biological and toxic effects of surfactants and detergents: paradigm shifted

Key words:

regulation, trophic level, food chain, eutrophication, algal blooms, cyanobacterial blooms, red tide, brown tide, filter-feeders, bivalves, water bodies, streams,

ecological, discoveries, 2012, science, terminological,

About the author:

http://famous-scientists.ru/3732/